Renewable energies are increasingly important in our society. Taking care of our planet should be a must nowadays and the production of this type of energy is an alternative that respects the environment. Currently, Stolz has specialized in the management of bulk solids with which we can produce first and second generation bio-fuels (Biodiesel, Bio-ethanol), as well as the handling of biomass (wood pellets, straw, etc.). In the environmental area, Stolz has experience in the handling of manure, mud and municipal and industrial solid waste.